Display device including a sub-gate electrode

A display device comprising:

• a first pixel coupled to an emission control line;
• and
• an emission control stage configured to selectively couple the emission control line to a first supply voltage line or a second supply voltage line,
• wherein the emission control stage comprises:
• a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node;
• a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node;
• and
• a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode,
• wherein the sub-gate electrode of the third emission control transistor is coupled to the first supply voltage line.